Look at the torque curve on the S&S 583, over 100lbs/ft from 1500rpm to almost 5000rpm.

 

I'd go with your gut. On the surface, 777s in an otherwise stage 1 trike is a confusing recommendation. Although, it really does come down to what you're seeking, your riding style etc. I'm not familiar with how your exhaust plays with overlap, but something to look into. An exhaust that pushes back down low is going to push back worse when you add more overlap into the equation. What I'm trying to say is, the FM dyno charts have an exhaust that seem to work well hence the no loss of torque with the 777s vs. stock. That result will not always be the case.

 

That is a great lowend grunt on the SS 583 cam. It falls off a little faster than the TW-222 which is expected, basically, the S&S shifts the torque curve to the left a little by starting earlier and finishing before the others who start a little later and run a little longer. That's a nice flat curve too.

Just decide where you want the most pull to be felt and pick that cam. No doubt this cam is going to pull strong off the line and if you don't rev it out past 4500 rpm it should be nice upgrade.

 

W777 works real well with the right exhaust.. The VnH and big mufflers maybe too much. I've had very good results with the W777 and a DnD Fatcat with quiet baffle even running a CR of 9.9 to 1 on a 07 FLHTC. Put somewhere around 40000 miles on it. Still have the bike and another 26000 as a 107 @10.4 to 1 still with the W777.

 

The reason I've been considering a Stage II set-up on our trike is that its gearing is pretty tall, compared to a Tri Glide or Freewheeler. They are geared 30/70 while mine has a 32/68 combo. I bought a new 30T front pulley but my indy shop thinks I'll also need a new, shorter belt. Big job, with lots of labor. Trikes are obviously heavier than a Street Glide, wife rides with me about 75% of the time(she weighs about 140lbs), and the taller gearing is not as useful, here in the TX Hill Country. My thinking is that longer duration cams will just make the bottom end feel even weaker. Both the S&S 583's and TW-222's will pull hard all the way past 5000rpm, with more bottom end and midrange power, as well. The stock cams feel pretty flat, above 4,000rpm.
Am I on the right track or should I spend the money instead, on the gearing? The last thing I need is a trike with a light switch powerband. lol

 

I assumed that you had trike gearing. You are more correct to go with a lower end cam if you plan on keeping the stock bagger gearing..

You can typically go to 30/70 and use the same belt as a 32 / 68 but removing 2 teeth only on the front will move the axle back about 14mm. With your trike, I don't know if you have that much adjustment.

 

That's the rub, Max, it's going to be really close on having the extra adjustment room. I'm starting to think it might be worth the gamble, to go ahead and see if the smaller pulley will work.

 

Is this shop set on using Woods cams?

If you want it to run a little better on top and are afraid of what the 777 might hurt down low, look into the tw5-6

 

Not necessarily, I just mentioned I was interested in either the Woods 222's or Andrews 48's and they recommended the 777's. Most of their builds are high-hp stuff so it's kinda understandable.
I have to admit, the more I read up on Fuel Motos cam info, I'm not yet convinced the 777's are a bad choice.

 

Their 20 cam shootout was with a 2-1 exhaust and the 222 & 777 are so close in peak numbers I wouldn't risk being disappointed in the low end